Kuhl said deputies were called to Vandercook Lake High School, 1000 E. Gulf Ave., after school administrators contacted the department.

"Right now, we are investigating the allegations. The school did a good job by getting on top of (the situation) right away and contacting us," Kuhl said. "

Kuhl said the substance brought on school grounds will be tested to see if it is marijuana and if so, how the student came in possession of the substance.

"It has to be tested by a lab, and it is still in the allegations phase," Kuhl said.

Vandercook Lake Public Schools Superintendent Anthony Hollow said the student, who is a ninth-grader, is suspended until the investigation is complete.

"A temporary suspension often happens, once we know the involvement and the student admits to some responsibility," Hollow said. "As the investigation goes on, (students) are put on a temporary suspension, with their work and assignments being completed at home until we reach a decision in regards to the actual consequences."

Hollow said the incident was reported to school staff when the ninth-grader brought the "suspicious" brownies to lunch, and was reported by other students.